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Latest travel advice

National Rail has issued the following travel advice:

Advice for Great Western Railway customers:To help you on your journey, you can use you ticket on South West Trains services on any reasonable route. Tickets will also be accepted on Southern services between Clapham Junction and Gatwick Airport.

Advice for South West Trains customers:To help you on your journey, you can use your ticket on Southern and Great Western Railway services on any reasonable route.

16:04

Delays can be expected until 7pm

National Rail has confirmed that residual delays of up to 40 minutes should be expected until 7pm as the service recovers.

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Engineers at work

15:42

Huge explosion 'shook the floor'

Lucy Humphreys, who was waiting to get her train, said:

“I heard a huge explosion which shook the floor, a bit of smoke from under the train came out and a bit of debris flew from platform 2 where the train was over to our platform track (platform 8) and just a load of British Rail Police were running about.

“I was waiting on platform 8 at the time and unfortunately just got on my train.”

15:36

Platforms closed

South West Trains confirmed that platforms 2 and 3 at Guildford station are closed.

Delays and platform alterations are likely.

15:31

Engineers at station

Engineers were seen on platform 3 making the necessary repairs.

15:25

National Rail confirms reopening of lines

15:23

Officers at the scene

15:22

Get Surrey's Michael Pearson from Guildford Station

Michael Pearson said that engineers appear to be working on platform 3 at Guildford station

15:20

Lines have reopened at Guildford

15:17

Long delays after fault on a train at Guildford

According to the National Rail website, delays are expected until 4pm

A statement read: “A fault on a train at Guildford means for safety reasons, the electrical supply to the track has been turned off. As a result, services at Guildford are currently unable to move.

“Trains are expected to be delayed by up to 40 minutes, cancelled or revised. Some trains may also be diverted via an alternative route.

“We anticipate a good service will be operating by approximately 16:00.”